Pound feet to newton meters converter
Convert pound feet (lbf·ft) to newton meters (N·m). Calculate a value, check the formula and compare common measurements.
Result for the values shown.
Calculations run in your browser.
What to enter
| Input | Meaning and units |
|---|---|
| Value | Enter value using the definition in the method and example. |
| From | Select the unit or currency in which the entered number is currently expressed. |
| To | Select the unit or currency you need for the answer. |
Understanding your result
The converted value describes the same torque quantity in the selected target unit. Display rounding does not add precision to the original measurement.
Common mistakes
- Confusing the source and target units, or overlooking a prefix or case-sensitive symbol.
- Treating torque as energy simply because their unit dimensions coincide.
Check your calculation
- Convert to the target unit and then reverse the direction. Within display rounding, you should recover the original value.
Read the torque measurement guide · Calculation checks, sources and review limits
How do I convert pound feet to newton meters?
Enter the value in pound feet to find the same torque quantity in newton meters. The number changes to match the unit; the underlying quantity stays the same. Check the definitions below when a unit has more than one convention.
Common uses
- Compare torque specifications expressed in different units.
- Translate a tightening-torque value to a familiar unit.
How it works
For the displayed direction, 1 lbf·ft equals 1.35581794833 N·m. The engine converts through the shared torque base quantity. Use consistent physical definitions; conversion changes the unit, not the measured quantity. The multiplier is derived from the two centralized unit factors. Keep full precision until the final result; displayed answers use up to 12 significant digits.
Worked example
10 lbf·ft converts to 13.5581794833 N·m. For the reverse direction, swap the units and enter 13.5581794833 N·m; the result is approximately 10 lbf·ft.
FAQ
How do I convert lbf·ft to N·m?
N·m = lbf·ft × 1.35581794833
Which definition is used?
The centralized unit definitions in our unit library are used.
Common values
Use “Swap units” above for the reverse conversion. Values below are rounded to six significant digits.
| pound feet | newton meters |
|---|---|
| 1 | 1.35582 |
| 5 | 6.77909 |
| 10 | 13.5582 |
| 20 | 27.1164 |
| 30 | 40.6745 |
| 50 | 67.7909 |
| 100 | 135.582 |